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ABI proposal #8

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opened 2023-07-24 18:53:07 +00:00 by Ghost · 0 comments
Ghost commented 2023-07-24 18:53:07 +00:00

Proposal for official Holey Bytes C ABI.

Eg. What registers are reserved for what, what is saved by caller, what is saved by callee, integer sizes, etc etc...

Currently we have reserved:

  • r0 is a zero register, by spec unwritable, hard-wired zero
  • r1 as a return address, saved by caller
  • r2 as a stack pointer, saved by callee
  • r3 as a thread-local data base pointer
Proposal for official Holey Bytes C ABI. Eg. What registers are reserved for what, what is saved by caller, what is saved by callee, integer sizes, etc etc... Currently we have reserved: - `r0` is a zero register, by spec unwritable, hard-wired zero - `r1` as a return address, saved by caller - `r2` as a stack pointer, saved by callee - `r3` as a thread-local data base pointer
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Ghost added this to the Holey Bytes v1.0 milestone 2023-07-24 18:54:37 +00:00
able self-assigned this 2023-07-25 00:14:50 +00:00
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Reference: AbleOS/holey-bytes#8
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